Psyren

"Save me!" Those were Sakurako Amamiya's last words to her friend Ageha Yoshina before she mysteriously went missing. Now Ageha's on a quest to find her. He's convinced that the mythical Psyren Secret Society has something to do with the recent rash of disappearances. And now he seems to be caught up as a player in their very deadly game...

(Source: VIZ Media)

Note: Includes six extra chapters.